Hi watchex, today i have a rare bird Jumbo omega seamaster 42mm. This is the same reference and size as “big yellow” 166.066 except with the rarer gray dial. Comps are anywhere from 1.5k-2k online Due to its rarity. It was only produced for one year and never again. I encourage you to look it up Important notes: the crown has been replaced with an OEM omega signed crown however it is not original to the watch as this watch originally has a split stem crown, this case variant is so rare its hard to track down. The buckle is aftermarket and omega signed, as well as the strap is a sail cloth ritche Aftermarket. The rest of the watch is completely original. See movement pics and case pics above. It is a 42 mm case size but wears smaller like a 40mm. The lug width is 22mm. It houses the famed omega 565 movement with quickset date function (push and pull from position 3 on the crown) it keeps time immaculately well for its age. I am letting this go today for the lowest comp online at $1250 shipped CONUS, if you find it cheaper show me and i will beat it. Buy with confidence - i have many verified transactions here with solid feedback I accept Venmo, Paypal, Crypto, and wire Thanks for your interest. If you have questions please do not hesitate to reach out